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156 Chapter 4: Lymphoma<br />

Table 3. Effect of overnight storage of PBPC collections on engraftment after reinfusion<br />

Median (range)<br />

Immediate Overnight<br />

processing (n=30) storage (n=23) P value<br />

Median day neutrophils >500/uL 10.5 (9-14) 11 (9-16) 0.421<br />

Median day platelets >20,000/uL 13.5 (8-53) 13 (7—43) 0.933<br />

Platelet recovery was defined as the first of 7 consecutive days of sustained platelet count<br />

>20,000lfiL without the need for platelet transfusions.<br />

days) was observed in seven patients, four whose product was processed<br />

immediately <strong>and</strong> three whose product was stored overnight. In addition, there was<br />

one patient in the overnight storage group for whom time to engraftment was<br />

censored since death occurred at day 30, prior to engraftment.<br />

Four patients, two in each study group, were given high-dose chemotherapy <strong>and</strong><br />

underwent reinfusion with a CD34-selected cell dose

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